With the technology for electric cars steadily improving, and gas prices fluctuating, consumer interest has taken off.

随着电动汽车的技术得到稳步提高，而汽车燃油的价格波动不停，美国消费者对电动汽车越来越感兴趣。

youdao

This has particularly been the case over the past few days, with stock prices fluctuating widely.

FORBES: Why You Should Be Calmer Than Mr. Market

And just since then, we've just seen prices fluctuating enormously.

NPR: Recession Fears Frighten Wall Street Investors

And there are a lot of companies that use these instruments to that legitimate end -- they are managing exposure to fluctuating prices or currencies, fluctuating markets.

WHITEHOUSE: President Obama Tells Wall Street to Back Reform